cptvf_mbox_send_ack and cptvf_mbox_send_nack are never
used since introdution in commit c694b233 ("crypto: cavium
- Add the Virtual Function driver for CPT")
Signed-off-by: NYueHaibing <yuehaibing@huawei.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>